168402020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{229}}^1\times {\mathrm{443}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 360279360

約数和(自身を除く): 191877340

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 229, 332, 415, 443, 458, 830, 886, 916, 1145, 1660, 1772, 2215, 2290, 4430, 4580, 8860, 19007, 36769, 38014, 73538, 76028, 95035, 101447, 147076, 183845, 190070, 202894, 367690, 380140, 405788, 507235, 735380, 1014470, 2028940, 8420101, 16840202, 33680404, 42100505, 84201010, 168402020]

約数ペア:

[(1, 168402020), (2, 84201010), (4, 42100505), (5, 33680404), (10, 16840202), (20, 8420101), (83, 2028940), (166, 1014470), (229, 735380), (332, 507235), (415, 405788), (443, 380140), (458, 367690), (830, 202894), (886, 190070), (916, 183845), (1145, 147076), (1660, 101447), (1772, 95035), (2215, 76028), (2290, 73538), (4430, 38014), (4580, 36769), (8860, 19007)]